Sudoku Studio

Ready

How to use

Click a cell or use the arrow keys to move around the grid.

Entering values

  • Use number keys 1-9 or the number pad to enter digits.
  • Use Backspace, Delete, or the on-screen Delete button to clear a cell.

Input modes

  • Known mode enters final digits.
  • Notes mode enters candidate digits in the small note grid.
  • Press K for Known mode or N for Notes mode.

Notes and checks

  • Known digits clear notes in that cell and remove matching notes from connected cells.
  • Conflicting known digits in a row, column, or box are highlighted red.
  • Clicking a known value highlights matching values and notes elsewhere.

Solving aids

  • Autofill switches to Notes mode and fills empty cells with valid candidate notes.
  • Singles highlights empty cells that have exactly one note in light green.

Saving

Save and Load use this browser's local storage, so puzzles stay in the same browser profile.